JSON Formatter & Validator

Free Online JSON Formatter, Validator & Minifier

Use our JSON Formatter to instantly:

• Beautify — Convert compact JSON into readable, indented format with 2-space indentation
• Validate — Instantly detect JSON syntax errors with exact error messages
• Minify — Remove all whitespace to reduce JSON payload size for APIs
• Count Keys — Shows total number of keys in the object tree

Common JSON Errors

• Trailing commas (not allowed in standard JSON)
• Single quotes instead of double quotes
• Missing commas between keys
• Unescaped special characters in strings